Whether you're buying these customized safety vests for summer or winter work, the mesh material won't add to or detract from the temperature. The 100% polyester body and reflective PVC taping is built to last, and the closure guarantees a good fit. Don't forget about the black contrast taping on Port Authority Mesh Safety Vests, either! The color contrast adds more visual appeal and reinforces all of the pieces. Avaiable in many colors and custom logo is welcome.